2011年1月 施工技术 第40卷第1期 CONSTRUCTION TECHNOLOCY 47 大型复杂钢结构施工力学及控制新技术的 研究与工程应用 郭彦林",田广宇',周绪红²,陈国栋” (1.清华大学土木水利学院,北京100084;2.兰州大学土木工程与力学学院,甘肃兰州730000; 3.萧江精工钢结构有限公司,上海200233) [摘要]随着我国钢材产量持续位居世界首位,钢结构在建筑工程中的应用越来越广泛。
特别是大型公共建筑领 域,涌现出大量复杂钢结构工程。
它们对施工力学分析和控制技术提出了多方面挑战,尤其表现在三维动态变形 预调技术的发展,整体提升、落架、起扳、滑移、张拉技术的信息化应用,面向建筑全生命周期结构设计理念的实现 以及对施工误差、施工环境湿度、焊缝收缩、混凝土收缩徐变等影响成型结构性能的因素的控制研究上。
这些技术 难点,必须通过能够在时间域和空间域进行协同时变分析的一体化系统来解决。
结合国内外具有代表性的大型复 杂钢结构工程,闸述了一体化协同时变分析系统在解决上述施工力学和控制问题时的原理、方法以及其中的新算 法、新技术,为今后的工程建设提供参考。
[关键词】施工力学;施工控制;一体化协同时变系统;大型复杂钢结构 [中图分类号]TU391;TU74 【文献标识码]A [文章编号]1002-8498(2011)01-0047-09 Application andResearchof ConstructionMechanics andNewControl TechnologyinLarge and ComplexSteelStructures Construction Guo Yanlin',Tian Guangyu',Zhou Xuhong²,Chen Guodong” (1. School of Civil Engineering, Tsinghua Unisersity,Bejing 100084,China; 2. School of Civil Engineering and Mechanics, Lanzhou Universty, Lanzhou,Gansu 730000, China; 3.Zhejang Jinggong Steel Building Co.,Lad.,Shanghai200233,China) Abstract:With the capacity of steel production in China continuing to be the top of the world, steel structures are used more and more widely in buildings. Especially in large public buildings, lots of plex steel structures e forth. They challenge construction mechanics and control technologies in informational aplication of integrated lifing,dismantling,pulling,slipping,tension technique, realization of fullife-oriented structural design, control criteria of construction deviation, influence of construction environment temperature,welding deformation and concrete's shrinkage-creep and so on.These problems have to be solved by integrated cooperative time-variation analysis system involved in space domain. Taking typical large plex stel structures home and abroad as examples, the authors point out theories and methods of integrated cooperative time-variation analysis system to solve problems above and introduces the new algorithm and FE element, which can provide reference for further ...